True Kombu Dashi Miso Soup with Miso Bloom

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A minimalist bowl of miso soup where the umami depth of homemade dashi perfectly balances the fermented richness of artisanal miso, evoking Kyoto's tea house simplicity. This japanese-inspired soups ready in about 25 minutes pairs kombu (dried kelp), water, white miso paste for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 72 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 10 min Serves 4 Japanese cuisine 72 cal/serving
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Ingredients

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Instructions

  1. Step 1: Place 20g kombu in 1.5L cold water in a pot; bring to 70°C (158°F) over low heat, then remove kombu immediately before boiling to prevent bitterness.
  2. Step 2: Simmer the dashi for 5 minutes, then strain into a clean pot, discarding kombu.
  3. Step 3: Reduce heat to low, add 3 tbsp white miso paste, and whisk until fully dissolved—never boil to preserve delicate flavor.
  4. Step 4: Gently fold in 150g cubed silken tofu and 1 tbsp rehydrated wakame, heating for 2 minutes until just warm.
  5. Step 5: Divide into bowls, top with 2 thinly sliced green onions, and serve immediately while the soup is at 65°C (149°F).

Frequently asked questions

How long does True Kombu Dashi Miso Soup with Miso Bloom take to make?

Total time is about 25 minutes (15 min prep + 10 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover True Kombu Dashi Miso Soup with Miso Bloom?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep kombu (dried kelp) from drying out.

Can I substitute ingredients in True Kombu Dashi Miso Soup with Miso Bloom?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale True Kombu Dashi Miso Soup with Miso Bloom for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with True Kombu Dashi Miso Soup with Miso Bloom?

Japanese soups like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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